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Fri, 23 Aug 2024 01:45:16 +0000 (GMT) Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 47N0YEcX012191; Fri, 23 Aug 2024 01:45:15 GMT Received: from ca-dev112.us.oracle.com (ca-dev112.us.oracle.com [10.129.136.47]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 416g0e9gb3-1; Fri, 23 Aug 2024 01:45:15 +0000 From: Sherry Yang To: maxtram95@gmail.com Cc: andrii@kernel.org, ast@kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, gregkh@linuxfoundation.org, john.fastabend@gmail.com, maxim@isovalent.com, sashal@kernel.org, stable@vger.kernel.org Subject: BPF selftest failed to build Date: Thu, 22 Aug 2024 18:45:14 -0700 Message-ID: <20240823014514.3622865-1-sherry.yang@oracle.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240711184323.2355017-2-maxtram95@gmail.com> References: <20240711184323.2355017-2-maxtram95@gmail.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-23_01,2024-08-22_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 bulkscore=0 adultscore=0 malwarescore=0 suspectscore=0 mlxscore=0 mlxlogscore=999 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2407110000 definitions=main-2408230009 X-Proofpoint-ORIG-GUID: 84vaS5JaquI_V4VUzaydlv9c0HukKbGa X-Proofpoint-GUID: 84vaS5JaquI_V4VUzaydlv9c0HukKbGa Hi All, We found BPF sefltest fail to build with following error: 08-09 20:39:59 DBG: |output|: progs/test_global_func10.c:24:1: error: unknown type name '__failure' 08-09 20:39:59 DBG: |output|: __failure __msg("invalid indirect access to stack") 08-09 20:39:59 DBG: |output|: ^ 08-09 20:39:59 DBG: |output|: progs/test_global_func10.c:24:17: error: expected parameter declarator 08-09 20:39:59 DBG: |output|: __failure __msg("invalid indirect access to stack") 08-09 20:39:59 DBG: |output|: ^ 08-09 20:39:59 DBG: |output|: progs/test_global_func10.c:24:17: error: expected ')' 08-09 20:39:59 DBG: |output|: progs/test_global_func10.c:24:16: note: to match this '(' 08-09 20:39:59 DBG: |output|: __failure __msg("invalid indirect access to stack") 08-09 20:39:59 DBG: |output|: ^ 08-09 20:39:59 DBG: |output|: progs/test_global_func10.c:24:52: error: expected ';' after top level declarator 08-09 20:39:59 DBG: |output|: __failure __msg("invalid indirect access to stack") 08-09 20:39:59 DBG: |output|: ^ 08-09 20:39:59 DBG: |output|: ; 08-09 20:39:59 DBG: |output|: 4 errors generated. 08-09 20:39:59 DBG: |output|: make: *** [Makefile:470: /root/oltf/work/linux-bpf-qa/tools/testing/selftests/bpf/test_global_func10.o] Error 1 08-09 20:39:59 DBG: |output|: make: *** Waiting for unfinished jobs.... It happens from the commit e30bc19a9ee8("bpf: Allow reads from uninit stack"). We did a further look, '__failure' is defined in tools/testing/selftests/bpf/progs/bpf_misc.h, and was 1st introduced in commit 537c3f66eac1("selftests/bpf: add generic BPF program tester-loader") which is not backported to linux-5.15.y. So we may need to revert the patch, or fix it. Kind regards, Sherry